CRM has evolved over time from a focus on mass marketing in the 1960s to developing personal customer profiles and building customer-focused organizations today. CRM seeks to understand customers through collecting and integrating information on who they are, what they do, and what they like. The goals of CRM are to use existing customer relationships to grow revenue, provide excellent service through integrated customer information, and introduce consistent sales and service processes. Key benefits include improved customer service, sales, and increased revenues by better understanding customers.